Finding the Third Proportional to 87,276 and 138,420
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Solution
The third proportional to 87,276 and 138,420 is: 219,534.54
Step by Step Solution
- Step 1: Write the proportion equation
87,276 : 138,420 = 138,420 : x - Step 2: Convert to fraction form
87,276/138,420 = 138,420/x - Step 3: Cross multiply
87,276x = 138,420 × 138,420 - Step 4: Simplify right side
87,276x = 19,160,096,400 - Step 5: Solve for x
x = 19,160,096,400/87,276 - Step 6: Final answer
x = 219,534.54
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.